I have edited a short videoclip with Openshot, that includes shots from within and outside of a building. Colour temperaturs are very different, so I want to do some colour correction before exporting the final video. However, the needed effect for colour correction is missing, I have just

So many effects, that are included in many Openshot tutorials are missing.

I run Ubuntu 16.04, and I have installed the openshot and openshot-qt packages, but have worked with the later one. I have de-installed both and downloaded the AppImage from the Openshot website, but it still only has these included effects.

Any advise, where I could download and install the missing effect files?